Analysis of COMS-1 North-South Station Keeping Method

Details Analysis of COMS-1 North-South Station Keeping Method Analysis of COMS-1 North-South Station Keeping Method

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jass...22..527k&link_type=abstract

Journal of Astronomy and Space Sciences. Vol. 22, no. 4, 527-536

Astronomy and Astrophysics

Astronomy

Coms-1, North-South Station Keeping, Box-Limit, Tbct, Mct, Mft

Scientific paper

The perturbations caused by the Sun and the Moon are predominantly out-of-plane effects causing a change in the inclination and in the right ascension of ascending node of a geostationary satellite. Due to the change of the inclination, subsatellite latitude of the geostationary satellite has a daily variations of the same magnitude of the inclination. Therefore we need a facility to control the orbital inclination and right ascension of ascending node for maintaining the satellite position in specified subsatellite latitude boundary using thrusters. In this paper we studied North-South station keeping strategies of the COMS-1 such as Track-Back Chord Target (TBCT) method, Maximum Compensation Target (MCT) method and Minimum Fuel Target (MFT) method. We accomplished those North-South station keeping maneuvers for one year starting from December 2008. The required velocity increments to maintain the satellite are estimated as MCT 52.6065m/s, TBCT 52.2383m/s, MFT 51.5428m/s, respectively. We demonstrated that TBCT and MFT methods are proper to North-South station keeping for COMS-1. MFT method showed the minimum required velocity increments whereas TBCT traced narrow inclination boundary area for North-South station keeping.

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